Interior-telescoping-rim head lamp



Feb. 24, 1931. a .HYATT 1,793,805

INTERIOR TELESCOPING RIM HEADLAMP Filed Jain. 16, 1930 "2% INVENTOR.Sam/1 w. b94777;

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Patented Fat. 24, 1931 NITED STATES.

PATENT OFFICE SAMUEL W. HYATT, F CONNERSVILLE, INDIANA, ASSIGNOR 'IOINDIANA LAMP CORPORATION, OF CONNERSVILLE, INDIANAINTERIOR-TELESCOPING-RIM HEAD LAMP Application filed. January 16, 1930.Serial No. 421,086.

This invention relates to a headlamp construction wherein the door rimand casing have a detachable connection.

The chief object of the invention is to provide a headlamp constructionwith a casing and door rim, the latter being telescopically receivableby the former to permit full telescoping of the rim by the casing if andwhen desired, thereby eliminating lateral and peripheral exposure of allor the larger portion of the usual door rim construction.

. T 1e chief feature of the invention consists in providing a connectionas aforesaid which accomplishes the object noted and which may befurther arranged so that the closure for the rim is relativelypermanently connected to said rimandgremovable with the reflector as aunitary device in certain instances. The full nature of the inventionwill be understood from the accompanying drawings and the following.description and claims.

In the drawings Fig. 1 is aside elevational view of one embodiment ofthe invention,

parts being broken away to show the same and other parts in centralsection. Fig 2 is an end view of a portion of the rim and easingconnection shown in .section in Fig. 1. Fig. 3 a view similar to Fig. 1and of a modified formof the invention. Fig. 4 is an elevational view ofthe rim and casing connection shownin Fig. 3. Fig. 5 is a view similarto Figs. 1 and3o1l another modified form of the invention. In thedrawingsllO indicatesa casing, 11 a reflector, 12 a door rim havingin-turned flange 13 defining an aperture which receives the bevelledprojecting portion 14 of the closure 15. Said lens closure. hasaperipheral flange 16 that extends substantially parallel tothebodyportion 12.0f the door rim. An annular sealing gasket 17 isinterposed between the reflector and closure and the reflector includesa rearwardly directed annular flange 18. Which terminatesin a radiallydis posed wall 19, said flange 18 and wall 19 forming an annular seatfor the inner and rearward faces of theannular sealing member 17.

In Fig. 1 the casing supports as at 20 an angular clip 21 having thethreaded aperture 22thereiu for receiving the threaded bolt 23 extendingthrough a similar aperture 24 in the wall 19 of the reflector. I11thismanner andin this embodiment of the invention, the reflector isrigidly mounted upon the casing. The door rim includes an inwardlydirected portion which supports a radially projecting screw bolt 31. Thecasing is radially slottedas at 32 to permit lateral movement of thebolt in the nesting of the door rim within the casing. A winged nut 33,together with suitable mechanism indicated generally at 34, serves toalign and maintain in lamp formationthe closure and easing.

The inwardly directed annular portion 30 of the rim terminates in aninwardly and forwardly turned portion 35, the same forming a groove withsaid portion to seattherein an angular clip 36'that bears against thelens closure and yieldingly locks the lens closure in the door rim sothat the rim andclosure be removable as a unit.

Inwardtelescopic movementof the rim is prevented'either by the limit ofcompression ot-thesealing gasket 17 or by the groove forming portion ofsaid rim engaging the angular bracket 21 as a stop.

The resulting construction, therefore, consists of a fullcirci'unterential rim, a full cir cumierential asket and a fullcircumferential reflector tor-med gasket seat telescopically receivablewithin and in this instance fully receivable within a lamp casing. Theaioresaid construction eliminates the finishing by plating,polishingenameling or the like, of the inwardly directed portion 30 ofthe rim and full peripheral seal isobtained between the several partshereinbefore mentioned.

In F is. 3 a modified form of the invention is ill-ustrated and in thisformthe casing is illustrated provided with: the cooperating portion 131 for locking and maintaining in locked position the door rimconstruction including the iii-turned aperture defining portion 113, thefront or face portion 112 and the inwardly directed portiontelescopically receivable by the casing 110.

In the present form of the invention the rim is shown provided with aperipheral head portion 150 that is laterally exposed by the casing andwhich willbe finished by plating or otherwise to Conform preferably withthe face portion 112 of the rin The casing is radially slotted as at 132and radially receives the bolt 131 carried by the telescopic portion 130of the rim. The usual wing nut 133 maintains the rim casing andassociated parts in headlamp formation.

The closure 115 includes the bevelled edge 114lassociated with thein-turnedflange 113 of the rim and the closure includes the lateralflange portion 116.

The reflector 111 includes the rearwardly directed peripheral flange118provided with the radialwall 119, said flange 118 and wall 119 formingthe seat for the gasket 117, which in the'present instance bearsdirectly against the closure 115.

rim and, closure are removable as a' unit from the casingfand thereaftermay be separated for bulbreplacement in the usual lamp socketprovidediin the headlamp construction. In the present form of theinvention the door rim telescopic extension 130 includes an inclinedinwardly and rearwardly directed ried by flange 119 o'fthe reflector andthe inclined flange portion 160 of the door rim so that full peripheralsealwill always be maintained between the closure and the reflectorwhenthe' rim is mounted within the casing.

Upon removal of the rim and reflector structure from the casing byreleasingthe clamping nut 133 and axiallyseparating the before mentionedparts, then the portions 160, 161 and 162 of the door rim separate fromeach other at the slot 163 and such. separation is suflicient to enlargethe diametrical opening in the rearward extension of the rim to permitaxial separation of the reflector from the door rim in order toobtainaccess to the socket for light bulb replacement. But when the rimand reflector are associated together and the rim is nested within thecasing all of the parts are fully sealed and the several separatedportions are in substantial abutment forming full peripheral wedging andsealing engagement.

In Fig. 5 a modified form of the aforesaid invention is illustrated andin this figure the casing 210 mounts at 232 a strap 280that terminatesin a threaded nut portion-233 that receives a threaded portion of thebolt 231 supported by an angl'e bracket 281 carried by the peripheralportion 250 of the door rim -having the front face 212 and the in-Inthis, form of the invention the reflector;

my signature.

Wardly directed aperture defining flange 213 that bears against theextension 216 of the closure 215 having the bevelled portion 21% at thejunction thereof. Back of said closure is the sealing gasket 217seatable'in the groove formed by the annular extensions 218 and 219 ofthereflector 211. The reflector in this form of the invention includesthe rearwardly and inwardly directed extension 26 1 that is inclined andbears'upon a similarly inclined portion 260 which is connected to theexposed portion 250 by the telescopic portion 221. The inclined portion260 has the rear- .wardly and. outwardly directed portion 261terminating in the ii'i turned end 262. he several inclined portions ofthe rim'arc laterally slotted as at 263. The operation of the device issubstantially that set :torth relative tothe modification shown in Figs.*3 and a flange, a similar ledge portion on said radial wall engagingsaid former ledge'portion and causing a wedging action therewith whenthe said rim has reached the limit of its movement inwardly ot-thecasing, and-a. clamp connection holding the rim and the casing together.7 T g 2. In a headlamp, a casing, a door rim having a peripheral flangeprojecting rearwardly therefrom to engage and snugly fit within theforward end of said casing, a reflector within,saidcasing, a radiallydisposed wall formed-on said reflector near the forward edge thereof andhaving its outer edge spaced slightly from said casing, a ledge portioninwardly and rearwardly inclined from the said outer edge, a peripheralledge portion inwardly and-rearwardly inclined from said flange, saidledge portions adapted to engage in wedging relation with each otherwhen the rim has reached the limit of its movement inwardly of thecasing, the ledge portion of said rim being split to -permit of theexpansion andcontraction thereof, and means for holding the rim andcasing'togetheru In witness whereof, I have hereunto aflixed SAMUEL wjHYATT.

